package cn.edu.zafu.bigdata.x.wgj.c;

class Vehicle { public void move() { System.out.println("Vehicle is moving"); } }
class Car extends Vehicle { @Override public void move() { System.out.println("Car is moving"); } }
class Bicycle extends Vehicle { @Override public void move() { System.out.println("Bicycle is moving"); } }
public class Test {
    public static void main(String[] args) {
        Vehicle[] vehicles = new Vehicle[2];
        vehicles[0] = new Car();
        vehicles[1] = new Bicycle();
        for (Vehicle vehicle : vehicles) { vehicle.move(); }
    } }
